The benefit with using init is that init will automatically start the plugin if you reboot your server anytime

Once you start the plugin (either directly or using init), wait for a few minutes, visit the New Relic Plugins product and go to the Postfix tab. You should see your server in the list of Postfix instances in that tab. If you don't see a Postfix tab or don't see your server in the list of Postfix instances, check the plugin's log file /var/log/newrelic/newrelic-plugin-agent for errors.

Setup Alerts

If you've migrated to the new New Relic Alerts product, automatic alerts won't work. Fortunately, its fairly easy (and also more flexible) to just setup these alerts yourself. Visit the New Relic Alerts product, go to the "Alert policies" section and setup an Alert policy for Postfix. You can use the follow metrics in the Alert policy conditions

Source

License

This plugin is a fork of MeetMe's New Relic plugins and they've a license
https://github.com/SupportBee/newrelic-plugin-agent/blob/postfix_support/LICENSE

Support

Postfix and this plugin are a critical part of our infrastructure. If you've any feature requests or face issues when installing the plugin or setting up alerts, just tweet to us Twitter or send us an email.

The Postfix plugin extends the power of New Relic's monitoring capabilities.